On Apr 24, 2007, at 3:22 PM, Jason Thorpe wrote:

> Probably better is "deliver an kevent every time the data has  
> changed".  Of course the data can be read any time, but the driver  
> polls, gets new values, compares to the last values, and sends a  
> kevent when any of the values differ.

...and of course all of this logic could be encapsulated in sysmon so  
each driver doesn't have to do it.

-- thorpej